/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.sqoop.submission.counter;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

/**
 *
 */
public class Counters implements Iterable<CounterGroup> {
  Map<String, CounterGroup> groups;

  public Counters() {
    this.groups = new HashMap<String, CounterGroup>();
  }

  public Counters addCounterGroup(CounterGroup group) {
    groups.put(group.getName(), group);
    return this;
  }

  public CounterGroup getCounterGroup(String name) {
    return groups.get(name);
  }

  @Override
  public Iterator<CounterGroup> iterator() {
    return groups.values().iterator();
  }

  public boolean isEmpty() {
    return groups.isEmpty();
  }
}
